Lamp.



No. 686,035. Patented Nov. 5, IBM.

J.&. G. G. DDORENBOS.

LAMP,

.(Application filed July 6, 1901.) (No Model.) 3 Sheets-Sheet l.

HHIIIIIHIH an/J00 7127250; 3 Z5 6. jaorenps,

urns msmusmu. u. c.

Patented Nov. 5, I91. J. 8'. G. G. DOURENBOS.

LAMP. (Application filed luly 6, 1901.)

3 Sheets-Sheet 2.

(No Model.)

IIII' I F! E I l E l l m: nonms PETERS co. momm'nu. wAsumarcn n c J.v & G. G. DODRENBOS.

LAMP.

No. 686,035. Patented-Nov. s, I90l.

(Application filed July 6, 1901.)

(No Model.) 3 Sheets-Sheet 3.

lll uunu Il 7 II II llunmmul NrTED STATES I PATENT OFFrcE.

JOHN DOORENBOS AND GARRETT G. DOORENBOS, OF KALAMAZOO, MICHIGAN.

LAMP.

SPECIFICATION forming part of Letters Patent No. 686,035, dated November 5, 1901.

Application filed July 6 1901. $erial No. 6 7,278. (No model.)

T 0 all whom it may concern Be it known that we, JOHN DOORENBOS and GARRETT G. DOORENBOS, citizens of the United States, residing at Kalamazoo, in the county of Kalamazoo and State of Michigan, have invented a new and useful Improvement in Lamps, of which the following is a specification.

Our invention relates particularly to gaslamps employing mantles of the VVelsbach type, which are heated to incandescence by means of burners particularly adapted to generate heat.

Our primary object is to provide a lamp of this character of improved general construction, of high candle-power, and containing numerous improvements in matters of detail.

In the preferred construction the lamp is supported by a gas-pipe, through which the gas is supplied, and the gas passes from said pipe through a passage in the burner-body to the central mixer-chamber, from which as a common source the several burner-orifices are supplied.

form in the accompanying drawings, in which-s Figure l is a view of a complete lamp with the exception of the shade; Fig. 2, an enlarged broken section of the lamp; Fig. 3, an enlarged broken section of the detachable base for the burner-body, taken as indicated at line 3 of Fig. 2; Fig. 4, an enlarged View of a valve employed at said base; Fig. 5, an enlarged section of the burner-body and its casing, the section corresponding with the section shown in Fig. 2; Fig. 6, a plan section showing the mantle-support; Fig. 7, a plan View of the burner-body, showing the four main burnerorifices with which the lamp is in this instance provided; Fig. 8, a plan view of the burner-body with the top removed, and Fig. 9 an enlarged broken perspectivc View showing the binding with which the upper portion of the globe is provided.

The preferred construction is as follows: A represents a burner-body having a removable top A and a removable base A B, a cylinder or casing inclosing the body A; C, a globe-support which fits upon the cylinder 13; D, a globe carried by the support 0; E,

main burner-orifices with which the top A is equipped; F, mantles suspended by means of hooked links F from a mantle-support F,

provided with arms F G, a supply-pipe clamped to the burner-body; H, a central gas orifice or nozzle with which the part A is equipped, the passage thereat beihg controlled by a needle-valve H; I, a supplemental gas orifice or nozzle adjacent to the nozzle H; J, a gas-tube for supplyinga pilot-burner J, situated adjacent to the main burners E; K, a valve controlling passages leading to the orifices H and I and to the tube J, and K a bell-crank lever connected with the stem of the valve K and serving to operate said valve, said lever being provided with depending chains through the medium of which it is operated;

The main portion of the burner-body comprises a central tube at, having a vertical passage or mixer-chatnber a, a vertically-disposed laterally-located enlargement 0. provided with a descending gas-passage a a circular bottom flange a", an air-admission passage a adjacent thereto, a central circular flange a and a bell-shaped upper end a provided with a circulanflange a The bellshaped upper-end is hollowed out 'and equipped with a cross-piece at, having a contral boss 0, provided with a threaded depres sion or perforation a, which receives the lower end of the pipe G and connects through a passage 0, in the part a with the passage of. The hollowed upper end of the bell communicates by passages a with the mixerchamber Ct". The upper portion or cap-piece A of the burner-body comprises a disk provided on its under surface with a circular channel I), which communicates with the main burner-orifices E, which are arranged on the upper surface of said disk. Thus there is provided a central collar 1) on the lower surface of said disk, and between said collar and the adjacent surface of the boss (1 at the up per end of the main portion of the burnerbody is confined a washer 6 of asbestos or othersuitable material. The disk is provided with a central perforation Z7 through which the pipe G loosely passes. From Fig. 5 it will be understood that the part A is firmly clamped to the main portion of the burnerbody by means of the pipe G and the nut G. The base A of the burner-body is provided with a suitable downward extension 0, perforated and threaded to receive the stem of the needle-valve H, and adjacent thereto with a lateral verticallydisposed projection orlug c, havinga horizontal chamberor perforation for receiving the valve K. The valve K is provided, Figs. 2, 4, and 5, with a channel 0 having an inlet end 0 and an outlet end a. The enlargement c is provided with a channel 0 which is always in communication with the end 0 of the channel 0 The part c is further provided with a passage 0 with which registers the end 0 of the passage 0 when the valve K is in the open position. The valve K is provided with branch passages 0 e the latter of which maybe caused to register with a passage 0 with which the part c is provided and which leads to the supplemental gas-orifice I. The purpose of the supplemental gas-orifice I is to supply an increased quantity of gas to the lamp at the moment of ignition. Afterward the supply to the supplemental orifice is cut off, and the lamp receives its supply through the main orifice H. The tube J of the pilot-burner passes looselythrough a perforation 0 in the flange a of the burner-body and screws into a perforation o in the part c. Said tube receives a continuous but small supply of gas through a passage o which communicates with the passage 0 through a passage 0 Said tube J receives a larger supply of gas through a passage 0, with which the channel 0 of the valve K registers for a short time during the operation of opening the valve K to light the lamp. After the lamp is lighted, however, the passage 0 is closed, leaving the pilotburner supplied with only sufficient gas to keep it lighted. The passage 0 is regulated by a screw 0 and, if desired, the supply to the pilot-burner may be-wholly cut off.

The casing Bis firmly secured to the flanges a a", over which it closely fits. Said casing is provided at its lower end with a series of perforations for admitting air, and the airadmission is controlled by means of an internal sleeve (1, provided with an operating-stem d, which projects downwardly through a slot in the base A The globe-support 0 comprises an inner cylindrical portion f, which fits closely upon the cylinder B and is suitably recessed or slotted to give it the desired springiness, and an outer globe-receiving bell-shaped portion f, connected with the lower end of the cylindrical portionf, the flaring end of the bellshaped portion being upturned to receive the snugly upon the cylinder B, as stated.

lower margin of the outer surface of the globe. Stamped or cut from the cylindrical portion fare prongs f which serve to engage the inner margin of the lower end of the globe. These prongs f are left attached at their lower ends to the cylinder from which they are stamped and are connected some distance below their upper ends with the bell-shaped part f by adjusting bolts or screws f The prongs f are preferably three in number and are located at equaldistances apart. Through their medium the globe may be firmly secured within the bell-shaped partf and, moreover, may be given the proper vertical adjustment by proper adjustment of the bolts f The cylindrical portion of the globe-support fits To prevent the possibility of the parts becoming separated, however, we provide the cylinder B, Fig. 1, with a spring g, which works within a slot g in said cylinder. This spring may, if desired, be formed from the material of the cylinder B, as shown. The relative position of the three prongs of the globe-support is shown by dotted lines in Fig. 1.

In Fig. l the valve K is shown in its open position, and when in this position one of the arms of the bell-crank lever K occupies substantially a horizontal position and, moreover, is of such length as to be engaged by the globe-support in the event that the latter is lowered, thereby to automatically close the valve K. The purpose is to render it impossible to remove the globe without first shutting off the gas-supply.

The globe D is equipped at its upper end with a light metallic binding h, which has an intnrned fluted flange h at its inner side. This binding may be formed from a single piece of metal, as illustrated, the tinting affording sufficient springiness to permit the binding to pass readily over the top of the burner-body when the globe is being removed. The binding serves to prevent injury to the globe during removal.

The operation will be readily understood from the foregoing description.

The pilot-burner may be kept constantly lighted with a small supply of gas through the passage 0 When it is desired to light the lamp, it is only necessary to pull upon the right-hand chain, thereby to turn the valve K to the open position shown in Fig. 1. During the operation of opening the valve K the passage 0 of said valve is brought for a short time into registration with the passage 0 supplying the supplemental gas-orifice I, and at the same time the passage 0 registers with the passage 0 of the main orifice H sufi"1- ciently to supplya full pressure of gas at the orifice H. For a moment also the passage 0 of the valve K registers with the passage 0 thereby supplying an increased quantity of gas to the pilot-burner snfficient to cause flames to shoot across the main burners E. This causes the gas to be ignited at the burners E, and during the final movement of III) the valve K the passages c 0 move out of registration with the passages which they .supply, and thereafter the lamp is supplied wholly through the orifice II, except for the small supply of gas which passes to the pilotburner and which is only sufficient to maintain the light thereat.

The passage of gas at the nozzle II may be regulated by the needle-valve and the supply of air to the mixer-chamber may be regulated by the'sleeve d. \Vhen it is desired to replace a mantle, it is only necessary to lower the globe D by sliding the globe-support C downwardly on the cylindrical guide B. This exposes the mantles, while the support 0 still remains on its guide. The links F permit the mantles to be applied so that their bases extend down over the burner orifices E. When it is desired to clean the lamp, the globe may be wholly removed by lowering it and the lamp may be taken apart, if desired. The group of main burner-orifices is supplied from a common source, and said orifices are all removable with the member A, which member is readily detachable.

Changes in form and indetails of construction may be made Without departure from our invention. Hence no limitation is to be un derstood from the foregoing detailed description except as shall appear from the appended claims.

\Vhat we claim as new, and desire to secure by Letters Patent, is-

1. In an incandescent gaslight lamp, the combination of a supporting gas pipe, a burner-body suspended therefrom provided with a mixer-chamber, a plurality of main burner-orifices on said burner-body and grouped about the lower end of said pipe and supplied from said mixer-chamber, a descendinggas-passage communicating with said pipe and leading to the base of said burner-body and supplying gas to said mixer-chamber, and a valve controlling said passage.

2. In an incandescent gas-light lamp, the combination of a burner-body provided with a mixer-chamber and a descending gas-passage, a plurality of main burner-orifices on said burner-body and communicating with said mixer-chamber, and a valve controlling the supply of gas to said mixer-chamber.

3. In an incandescent gas-light lamp, the combination of a burner-body having a central mixer-chamber and a laterally-disposed descending gas-passage, a head for said burner-body equipped with a plurality of main bnrner-orifices com municating with said mixer-chamber, a central supporting supplypipe connected with said head and communicating with said descending gas-passage, and a valve controlling the supply of gas to said mixer-chamber.

4. In an incandescent gas-light lamp, the combination of a burner-body having a mixer chamber, a removable head connected with said burner-body and equipped with a plurality of main burner-orifices communicating with said mixer-chamber, a gas-supply passage leading to the lower end of said mixerchamber, and a valve controlling the supply of gas to said mixer-chamber.

5. In an incandescent gas-light lamp, the combination of a supporting gas pipe, a bu rner-body having a mixer-chamber, a head for said burner-body removably connected with said pipe and with said burner-body, main burner-orifices grouped about said pipe and communicating with said mixer-chamber, a gas-passage communicating with said pipe and leading to the lower end of said mixerchamber, and a valve controlling the passage of gas to the mixer-chamber.

6. In an incandescent gas-light lamp, the combination of a supporting supply-pipe, a burner-bodyhavingthreaded connection with said pipe and supplied with amixer-chamber and a descending gas-passage, a removable head forsaid bu ruer-body receiving said pipe, a nut having threaded connection with said pipe and serving to secure said head to said body, main burnerorifices grouped about said pipe and communicating with said mixerchamber, and a valve controlling the supply of gasto said mixer-chamber.

'7. In an incandescent gas-light lamp, the combination of a burner-body,'equipped at its upper end with a main burner-orifice and having a mixer-chamber in communication therewith, a pilot-burner located adjacent to said burner-orifice, a supply-pipe for said pilot-burner, a main gas-orifice located at the base of said mixer-chamber, a supplemental gas-orifice located at the base of said mixerchamber, and a valve operating to admit gas to said two last-named orifices at an intermediate position of the valve and to close the admission to said supplemental orifice in the extreme open position of the valve.

8. In an incandescent gas-light lamp, the combination of a burner-body having a mixerchamber and a descending gas-passage, a head for said burner-body equipped with main burnerorifices communicating with said mixer-chamber, a supply-pipe supporting said burner-body and communicating with said descending passage, a removable base for said burner -body having a passage registering with said descending passage and equipped with a gas-orifice supplying gas to said mixer-chamber, and a valve carried by said removable base and controlling said lastnamed passage.

9. In an incandescent gas-light lamp, the combination of a burner-body having a mixerchamberand a descending gas-passage, a head for said burner-body equipped with main burner orifices communicating with said miXer-chamber,a supply-pipe supporting said burner-body and communicating with said descending passage, a removable base for said burner body having a passage registering with said descending passage and equipped with a gas-orifice supplying gas to said mixerchamber, a supplemental gas-orifice in a part &

carried by said removable base, and a common valve controlling the passages to said two last-named orifices.

10. In an incandescent gas-light lamp, the combination of a burner-body having a mixerchamber and a descending gas-passage, a head for said burner-body equipped with main burner orifices communicating with said mixer-chamber, a supply-pipe supporting said burner-body and communicating with said descending passage, a removable base for said burnerbody having a passage registering with said descending passage and equipped with a gas-orifice supplying gas to said mixerchamber, a supplemental gas-orifice carried by said removable base, a pilot-burner carried by said base, and a valve controlling the passage of gas to said main and supplemental gas-orifices and to said pilot-burner.

11. In an incandescent gas-light lamp, the combination of a burner-body comprising a centrally-located mixer-chamber, a laterallydisposed descending gas-passage, a hollowed bell-shaped upper end for said burner-body, a cross-piece at said upper end having a central pipe-receiving perforation in communication with said descending gas-passage, the hollow of said bell being in communication with said mixer-chamber, a removable head for said burner-body equipped with a plurality of main burner-orifices, and a valve controlling the passage of gas from said descending passage to said mixer-chamber.

12. In an incandescent gas-light lamp, the

combination of a burner-body, a casing therefor affording also a globe-support guide, a globe-support connected with said casing and provided with a bell-shaped upper end, and prongs Within said bell-shaped upper end and adjustably connected therewith, said prongs serving to adjustably clamp a globe to said bell-shaped end.

13. In an incandescent gas-light lamp, the combination of a burner-body, a casing therefor, and a globe-support carried by said casing, comprising a cylindrical portion fitting upon said casing, a bell-shaped portion having an outwardly-flaring upper end and supported toward its lower end by said cylindrical portion, and globe-clamping prongs connected with said cylindrical portion and adjustably connected with said bell-shaped portion.

14. In an incandescent gas-light lamp, the combination of a burner-body, a casing therefor, a globe-support slidably mounted on said casing, a valve controlling the supply of gas to the mixer-chamber of said burner-body, and a projecting arm on said Valve located in the path of said globe-support, whereby said arm may be automatically moved when said support is lowered.

JOHN DOORENBOS. GARRETT G. DOORENBOS.

In presence of ERNEST DYRENFORTH, ALBERT D. BAcoI. 

